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, n. J. SMITH.

SCRUBBER,'CLEANSER, AND COOLER FOR GAS.

APPLICATION FILED NOV/29,1918.

1,307,321 Patented June 17, 1919.

2 SHEETS-SHEET L 1).]. SMITH.

SCRUBBER, CLEANSER, AND COOLER FOR GAS.

APPLICATION FILED uov.29,1au8.

1 307,32 1. I Patented June 17, 1919.

2 SHEETS-SHEET 2.

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UNITED STATES PATENT orrion DAVID J. SMITH, OF IiONDON, ENGLAND.

To all whom it may concern:

Be it known that 1, DAVID J osnrn SMITH, major in the Army Service Corps, a subject of the King of Great Britain and Ireland, and a. resident of a0 Voodberry Grove, Finsbury Park, London, N. 4:, England, have invented new and useful Improvements in Scrubbers, Cleansers, and Coolers for Gas, of which the following is the specification.

This invention relates to devices used to cool, cleanse or scrub gases, and particularly to such devices used in connection with gas producers either suction or pressure operated, the gases being thus either drawn or forced through the scrubber.

The objects of this invention are (1) to reduce the size and weight of the scrubber; (2) to reduce the resistance by friction or back pressure on the gases passing through the scrubber, and (3) to render the apparatus suitable among other purposes for use on motor vehicles propelled by internal combustion engines operated by suction gas.

In the preferred form of construction the scrubber consists of a vertical cylinder of any suitable material and size, having fitted therein a smaller cylinder which is secured at the bottom of the larger cylinder concentrically, and projects upwardly nearly to the top cover thereof. The annular space between the two cylinders is fitted with ring disks of suitable material preferably sheet metal forming interrupted paths extending to within a suitable distance from the bottom of the main cylinder. The gas is caused to enter from the producer at the side of the main cylinder and to pass up the said interrupted paths. \Vater fed by a pump flows into the top of the main cylinder and runs down the said paths meeting the ascending gas on its way, and the latter is cooled and washed thereby. The water passes to the bottom of the main cylinder and leaves the scrubber preferably by the same pipe by which the gas enters. The gas on reaching the top of themain cylinder passes down the smaller inner concentric cylinder. This cylinder is filled nearly to the top with pieces of coke or other suitable material through which the gas is caused to pass.

Suitable means are provided to prevent any portions of coke, etc., which may become detached from being drawn into the as outlet pipe, and provision is made for draming' both the larger and smaller cylinders "when. necessary. The coke or the like is the cylinder projecting below same.

SCRUBBER, CLEANSER, AND COOLER FOR GAS.

Specification of Letters Patent. Patented Jun 17, 1919 Application filed November 29, 1918.

Serial No. 264,713.

less frictional resistance to the flow of the gas. The pump or water supply to the scrubber is arranged to be controlled either by the engine using the gas or by the fan forcin gas through the scrubber, so that the water supply is mechanically controlled and in proportion to the quantity of gas passing through the scrubber.

By the construction described herein, the

size of the scrubber as also the weight, can be reduced to a minimum which renders the scrubber suitable for use on automobiles, or for other vehicle purposes where the working conditions are liable to fluctuate rapidly.

And in order that my invention may be completely understood, reference should be made to the accompanying sheet of drawings which illustrates the preferred mode of carrying it into effect.

Figure l is a sectional elevation of the apparatus.

Fig. 2 is a detail plan View of one of the ring disks.

Fig. 3 is an edge view of same.

Fig. 4: is a section of the slot in the disk on'the line Z of Fig. 2. a

Fig. 5 is an elevation of the wire basket for holding the coke.

Fig. 6 is a plan of same.

Fig. 7 is a sectional view of three of the ring disks and their spacing rings, showing the arrangement of the disks with respect to one another.

Fig. 8 is a section on the line 88 of Fig. 1.

Referring to Fig. 1, A is the outer or main cylinder and B is the inner concentrically arranged cylinder. The cylinder A is fitted with closing or cover plates A A secured at the top and bottom of the cylinder respectively by means of bolts passed through flanges A A brazed or welded to the said cylinder or integrally formed therewith. The cylinder B is mounted upon and carried by the lower cover plate A, The cylinder is closed at its lower end by the cover plate B which has fitted therein a drain cock B for the removal of deposit or sludge.

An annular angle flange A is rigidly secured on the inside of the cylinder A and a corresponding annular angle flange B is secured on the exterior of the cylinder 13.

he flanges A B serve as supports for the series of disks as shown in Fig. 1, one of which is shown in plan and edge view respectively in Figs. 2 and 3. Each ring disk C is of thin sheet metal loosely fitting as to its exterior edge C the interior of the cyl inder A and as to its inner edge C the exterior of the cylinder B. Each disk C is formed with a slot C cut through it having one lateral edge of same 0 turned upwardly and the other C downwardly, see section on line Z shown in Fig. 4:. The ring disks C are arranged in a superposed manner in the annular space or chamber D between the cylinders A and B. Each disk C is spaced apart from the next by suitable means such as the rubber rings E, F, the rubber ring E of smaller diameter fitting against the exterior wall of the cylinder B, and the rubber ring F of larger diameter fitting next the inner wall of the outer cylinder. Each rubber ring F is held outwardly against the cylinder wall by the outer ends of the lips C C which are cut from the disk as shown in the plan, Fig. 2, in forming the slot C the lips being turned up at right angles as shown in Fig. 3. The ring is also held at 90 degrees from the slot by the lips G, G, which are formed by cutting slots on the edges of each ring disk. A third lip G is formed diametrally opposite the slot C The slot G is provided to permit of the passage of the water through the ring disk C to the next ring disk beneath it. Each such slot C is placed diametrally opposite in position to the said slots in the adjacent disks immediately above and below it, see Fig. 7. As a result of this arrangement the Water delivered to the scrubber by a pump not shown is conveyed by the pipe K to the annular chamber L and trickles downwardly through the slot C in the top disk 0 to the next disk and around the two semi-circular passages thus provided to the slot C on the disk below, and so on through all the successive passages between the superposed disks as shown which are spaced apart by the rubber rings E, F. The pipe K is bent round in ring formation as indicated and is provided with perforations K on its lower surface through which the water trickles.

The pump is preferably mounted on the gas producer afterward referred to, to which the apparatus described herein is an accessory.

The gases to be cleaned are delivered from the producer by the aipe M to the annular chamber D whence they pass by the slot C in the lowest disk by the two semicircular passages provided between that disk and the next above it before referred to, to the opposite slot C in the next disk, and so on through all the said passages provided between each pair of disks in succession until the gases reach the annular chamber L at the top. Meanwhile the water delivered through the perforations K in the annular delivery pipe K travels by gravity downwardly through the same semi circular passages thus provided in succession until the water reaches the annular chamber D, thence the water passes from the scrubber by the same pipe M as the gases enter thereto. The gases in their upward passage are thus exposed to the continuous downwardly moving stream of water.

The gases on delivery to the chamber L pass beneath the edge of the cone L and into the interior of the cylinder B. The interior of this cylinder is packed with pieces of coke which are retained or held in position by the wire basket N which is shown separately in elevation and plan respectively in Figs. 5 and 6. Hooks N are provided at the top of the wire basket or cage for placing in position over the upper edge of the inner cylinder B. On passing from the coke chamber the gases are defiected outwardly by the conical deflector O in the chamber 0, and then conveyed to the internal combustion engine to be supplied by the pipe 0 The conical deflector 0 serves to separate solid particles from the gases and to deposit same in the chamber 0 before the gases enter the pipe 0 Tarry refuse or sludge is removed from the chamber D by the plug D or from the chamber 0 by the cock B In employing the scrubber described with a gas producer supplying an internal combustion engine the water supply by the pump may be controlled, it will be understood, by the engine making use of the gas supply in any suitable manner.

lVhat I do claim as my invention and de she to secure by Letters Patent is z 1. An apparatus of the character described, comprising two concentrically and vertically arranged cylinders forming inner and outer chambers communicating with each other at the top, a filtering medium in one of these chambers, means in the other chamber for forming a circuitous passage therethrough, means for delivering water in the form of a spray to the upper portion of the chamber having the circuitous passage, means for delivering the gas to the lower portion of the said chamber, and means for conveying the purified gas from the chamber containing the filtering means.

2. An apparatus of the character described comprising twe concentrically and.

vertically arranged cylinders forming inner and outer chambers communicating with each other at the top, a filtering medium in the inner chamber, a plurality of disks centrally apertured to receive the inner cylinder and supported in the outer chamber one above the other, each disk being provided with an opening and the disks being arranged so that the openings of adjacent disks will be at opposite sides, means for delivering water in the form of spray into the outer chamber at the top thereof, and means for delivering the gas at the lower portion of the said chamber.

3. An apparatus of the character described, comprising two concentrically and vertically arranged cylinders forming inner and outer chambers communicating with each other at the top, the inner cylinder extending through the bottom of the outer cylinder, a plurality of disks centrally apertured to receive the inner cylinder and arranged in the outer chamber one above the other intermediate of its ends, each disk being provided with a slot and arranged so that the slots of adjacent disks will be at opposite sides, means for supporting a filtering medium in the inner chamber above the lower end thereof, a water spraying pipe for delivering water into the outer chamber, a gas delivery pipe for delivering the gas into the outer chamber below the disks thereof, and an outlet pipe leading from the lower projecting end of the inner cylinder.

4. An apparatus of the character described, comprising two concentrically and vertically arranged cylinders forming inner and outer chambers communicating with each other at the top, the inner cylinder eX- tending through the bottom of the outer cylinder, a plurality of disks centrally apertured to receive the inner cylinder and arranged in the outer chamber one above the other intermediate of its ends, each disk having a slot and arranged so that the slots of adjacent disks will .be at opposite sides, a coke carrying basket supported in the inner chamber, a cone above the said inner chamber, a water spraying pipe for delivering water to the outer chamber, a delivery pipe for delivering gas to the outer chamber below the disks, a cone supported in the inner chamber below the outer chamber, and an outlet pipe forthe gas leading from the projecting end of the inner cylinder.

DAVID J. SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

